Dopperlherz Aktiv Beauty Complex contains Biotin that supports the synthesis of keratin, the most abundant protein in the skin and in the hair, giving them strength and elasticity. It is essential for healthy nails, healthy hair and healthy skin. Having healthy nails, beautiful hair and a strong connective tissue is a wish for many people. This wish can only come true if specific nutrients, which can not be made by the organism, are supplied in the appropriate amounts by the daily diet therefore, Dopperlherz Aktiv Beauty Complex is the answer!